You have put the box thing on the one pressure plate.Then you have to stand on the other
pressure plate and let that shelf turn all the way around.Then step off the plate and wait
for it to stop then jump back over in front of the statue and use yo..

In the four corners of the lake thing there are tall statues.When the serpent is next to
them Shoot them and it will make a gonging noise that will irritate the serpent.When the
serpent is looking at the statue it is distracted, use your grapple to..